Originally Posted by
Diffracted
Entirely possible. A lot of PA28s I've flown seem to have fuel selector safety guards that don't seem to spring up to block an accidental switching to off.
It wouldn't make it that far, I make a point of learning how long an engine will run with the fuel selector off. A Warrior would make it from the 06 runup bay to about 100m along the takeoff run at best. I teach pilots to turn electric fuel pumps off only when you are in a position to carry out a safe forced landing. In the event of a failed mechanical pump and reliance on the electric pump, the engine will only run for a matter of seconds before losing power. I'm not suggesting this to be the case here.